IBM 3745 Problem Determination Manual page 191
Communication controller
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Also See for 3745:
- Hardware maintenance reference (712 pages) ,
- Maintenance information reference (595 pages) ,
- Service functions (321 pages)
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Host Messages
Table
2-1 (Page
2
of
2).
Usage Tiers for
3745
Models 130, 150, 160, and 170
c
3745 Modei 170
Tiers
LSS/HSS
TRAIELA
CA
Tier 1
1
LSS or
1
HSS
1
TRA or 1 ELA
2 CAs
Tier 2
2 LSSs
1 TRA or 1 ELA
2 CAs
1 LSS and 1 HSS
1 TRA or 1 ELA
2 CAs
2 HSSs
1
TRA
2 CAs
Tier 2.5
4 LSSs and 2 HSSs·
4 CAs
2 LSSs
1 TRA and 1 ELA
4 CAs
2 LSSs
2 ELAs
4 CAs
1
LSS and
1
HSS
1
TRA and 1 ELA
4 CAs
Tier 3
4 LSSs and 2 HSSs
4 CAs
4 LSSs
1 TRA and 2 ELAs
4 CAs
3 LSSs and 1 HSS
1 TRA and
1
ELA
4 CAs
2 LSSs and 2 HSSs
1 TRA
4 CAs
Tier 4
4 LSSs and 1 HSS
1 TRA and 1 ELA
4 CAs
4 LSSs and 2 HSS·s
1 TRA
4 CAs
o
2-6
IBM 3745 Communication Controller: Problem Determination Guide
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